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onsemi SZMM5Z2V7T1G
- Part No.:
- SZMM5Z2V7T1G
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- SC-79, SOD-523
- Datasheet:
-
SZMM5Z2V7T1G.pdf
- Description:
- DIODE ZENER 2.7V 500MW SOD523
- Quantity:
- Payment:
- Shipping:
Inventory:2,501
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Product details
Overview
SZMM5Z2V7T1G from onsemi is a 2.7 V ±0.2 V Zener diode in SOD-523 package, rated for 500 mW steady-state power dissipation at 25 °C, with 100 Ω maximum Zener impedance at 2 mA test current and <20 µA reverse leakage at 1 V, used for precision voltage clamping in space-constrained portable electronics.
For engineers reviewing the SZMM5Z2V7T1G datasheet, pinout, applications, or equivalent options, key selection criteria include Zener voltage tolerance (±0.2 V), low-profile SOD-523 footprint (1.20 mm × 0.80 mm), Class 3 ESD rating (>16 kV HBM), thermal resistance (250 °C/W), and AEC-Q101 qualification for automotive-grade reliability.
Technical Context
This device operates as a two-terminal voltage reference diode, conducting in reverse breakdown to clamp or regulate voltage at its nominal 2.7 V Zener voltage. It exhibits a negative temperature coefficient of −3.5 mV/°C and maintains stable regulation under DC or pulsed conditions up to 500 mW.
Designed for surface-mount use on FR-4 PCBs with 1 cm² copper pad, it supports reflow soldering up to 260 °C and meets MSL 1 moisture sensitivity requirements. Its 0.7 mm body height enables integration into ultra-thin handheld devices without compromising thermal performance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage | 2.7 V nominal, min 2.5 V / max 2.9 V at 2 mA - defines precise clamping threshold for low-voltage rail protection |
| Power Rating | 500 mW at 25 °C, derated 4.0 mW/°C above - sets maximum continuous dissipation on standard FR-4 board |
| Zener Impedance | 100 Ω max at IZT = 2 mA - ensures minimal voltage shift under varying load current |
| Reverse Leakage | ≤20 µA at VR = 1 V - guarantees low standby power loss in battery-powered systems |
| ESD Rating | Class 3 (>16 kV HBM) - provides robust handling immunity during assembly and field operation |
| Package | SOD-523 (1.20 mm × 0.80 mm × 0.70 mm) - enables high-density layout in smartphones and wearables |
| Qualification | AEC-Q101 qualified, PPAP capable - validates suitability for automotive infotainment and body control modules |
Pinout & Package
SOD-523 surface-mount package with cathode marked by polarity band; total dimensions 1.20 mm × 0.80 mm × 0.70 mm, 100% matte tin lead finish, MSL 1 compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Banded End) | Cathode | Connected to regulated output node; reverse-biased terminal where Zener breakdown occurs |
| 2 (Non-banded End) | Anode | Connected to ground or lower-potential reference; completes conduction path during clamping |
Key Features
| Feature | Design Value |
|---|---|
| Automotive qualification | AEC-Q101 certified with PPAP support - enables direct use in Tier-1 automotive subsystems without additional qualification |
| Pb-Free & RoHS compliance | 100% matte Sn finish, UL 94 V-0 epoxy - satisfies global environmental regulations and lead-free assembly requirements |
| Ultra-small footprint | 1.20 mm × 0.80 mm body - reduces PCB area by >50% vs. SOD-323, critical for miniaturized IoT sensors |
| High ESD robustness | Class 3 HBM (>16 kV) - eliminates need for external TVS in many portable interface circuits |
| Stable low-voltage reference | 2.7 V ±7.4% (2.5–2.9 V) with −3.5 mV/°C TC - supports accurate biasing of analog front-ends in 3.3 V and 2.8 V systems |
Applications
| Smartphone Power Rail Clamping | Automotive Cabin Sensor Biasing |
|---|---|
Use Scenario: Protecting 2.8 V camera module supply from transient overvoltage during hot-swap insertion. IC Role / Device Role / Timing Role: Two-terminal shunt regulator clamping rail to 2.7 V during surge events. Use Value: Prevents latch-up in CMOS image sensor ICs by limiting voltage excursion to within 0.2 V of nominal rail. | Use Scenario: Providing stable 2.7 V bias to MEMS accelerometer in vehicle door module exposed to load-dump transients. IC Role / Device Role / Timing Role: Precision voltage reference for analog signal conditioning circuitry. Use Value: Maintains sensor offset stability across −40 °C to +125 °C ambient due to AEC-Q101 validation and known TC. |
| Wearable Battery Monitoring | Industrial Handheld Terminal ESD Protection |
Use Scenario: Clamping ADC reference input in coin-cell powered fitness tracker during USB charging surges. IC Role / Device Role / Timing Role: Low-leakage (<20 µA) Zener clamp ensuring minimal battery drain during idle state. Use Value: Extends battery life by avoiding parasitic current paths while preserving 12-bit ADC accuracy. | Use Scenario: Protecting UART lines on ruggedized barcode scanner subjected to frequent human-body ESD events. IC Role / Device Role / Timing Role: Primary ESD suppression element with >16 kV HBM rating integrated directly at connector. Use Value: Eliminates need for discrete TVS array, reducing BOM count and PCB real estate by 3 components per port. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX584C2V7LT1G | Same 2.7 V nominal, but ±5% tolerance (2.565–2.835 V); 300 mW power rating; SOD-523 package | Limited to non-automotive consumer applications due to lack of AEC-Q101 qualification | Select when cost sensitivity outweighs automotive compliance and tighter 2.5–2.9 V tolerance is not required |
| MMSZ5223BT1G | 2.5 V nominal, ±5% tolerance; 500 mW rating; SOD-123 package (2.7 mm × 1.6 mm) | Requires PCB layout change due to larger footprint; unsuitable for ultra-dense layouts | Choose only if 2.5 V clamping is acceptable and board space permits larger SOD-123 placement |
Compared with BZX584C2V7LT1G and MMSZ5223BT1G, SZMM5Z2V7T1G offers the tightest voltage tolerance (±0.2 V), AEC-Q101 qualification for automotive use, and smallest available SOD-523 footprint-making it the sole option meeting all three criteria for next-generation compact, safety-critical designs.
Availability
SZMM5Z2V7T1G is available at Aetrix Electronics and suitable for smartphone power rail clamping, automotive cabin sensor biasing, and wearable battery monitoring requiring stable component supply across extended temperature ranges and high-volume production cycles.
Supply support for SZMM5Z2V7T1G includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
onsemi (formerly ON Semiconductor) is a global semiconductor supplier delivering energy-efficient silicon solutions for automotive, industrial, cloud, medical, and IoT applications.
SZMM5ZxxxT1G series is part of onsemi's precision Zener regulator portfolio, engineered specifically for space-constrained, high-reliability applications demanding AEC-Q101 qualification and ultra-low-profile packaging.
FAQ
What is the Zener voltage tolerance of SZMM5Z2V7T1G?
SZMM5Z2V7T1G has a Zener voltage tolerance of ±0.2 V around its nominal 2.7 V rating, meaning guaranteed operation between 2.5 V and 2.9 V at 2 mA test current. This tight tolerance is specified in the onsemi datasheet Electrical Characteristics table and distinguishes it from standard ±5% Zeners like BZX584C2V7LT1G. The SZMM5Z2V7T1G achieves this via process-controlled doping and post-package screening.
Is SZMM5Z2V7T1G suitable for automotive applications?
Yes, SZMM5Z2V7T1G is AEC-Q101 qualified and PPAP capable, as explicitly stated in the onsemi datasheet under "SZ Prefix" features. Its construction uses void-free thermosetting plastic, 100% matte tin leads, and passes MSL 1 reflow requirements-making SZMM5Z2V7T1G appropriate for automotive infotainment, body control, and sensor modules operating from −40 °C to +150 °C junction temperature.
What is the maximum power dissipation of SZMM5Z2V7T1G at 85 °C ambient?
SZMM5Z2V7T1G has a 500 mW power rating at 25 °C, derated linearly at 4.0 mW/°C above that temperature. At 85 °C ambient, derating is (85 − 25) × 4.0 = 240 mW, so maximum allowable dissipation is 500 − 240 = 260 mW. This value assumes mounting on an FR-4 board with 1 cm² copper pad, per the datasheet Note 1 in Maximum Ratings.
Does SZMM5Z2V7T1G have ESD protection built-in?
Yes, SZMM5Z2V7T1G is rated Class 3 per Human Body Model with >16 kV ESD withstand capability, confirmed in the onsemi datasheet Specification Features section. This intrinsic robustness eliminates the need for supplemental TVS diodes in many portable electronics interfaces, and the rating applies to both terminals under standardized HBM testing conditions.
What is the forward voltage of SZMM5Z2V7T1G at 10 mA?
The forward voltage of SZMM5Z2V7T1G is guaranteed ≤0.9 V at IF = 10 mA, as specified in the datasheet's ELECTRICAL CHARACTERISTICS overview table. This parameter is consistent across the entire MM5ZxxxT1G/SZMM5ZxxxT1G family and verified under TA = 25 °C conditions. Forward conduction behavior remains stable across the full operating temperature range.
SZMM5Z2V7T1G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- SC-79, SOD-523
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 2.7 V
- Tolerance:
- ±7.4%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 100 Ohms
- Current - Reverse Leakage @ Vr:
- 20 µA @ 1 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- -65°C ~ 150°C
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-523
SZMM5Z2V7T1G FAQ
1.How can I place an order for SZMM5Z2V7T1G through Aetrix?
Please submit a Request for Quotation (RFQ) for SZMM5Z2V7T1G on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for SZMM5Z2V7T1G reliable?
The price and inventory of SZMM5Z2V7T1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SZMM5Z2V7T1G is usually 5 days.
3.What payment methods are accepted for SZMM5Z2V7T1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SZMM5Z2V7T1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SZMM5Z2V7T1G?
SZMM5Z2V7T1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SZMM5Z2V7T1G order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for SZMM5Z2V7T1G?
For technical support, including SZMM5Z2V7T1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SZMM5Z2V7T1G requirements.
6.How does Aetrix verify that SZMM5Z2V7T1G is sourced from the original manufacturer or authorized distributors?
All SZMM5Z2V7T1G products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that SZMM5Z2V7T1G meets industry standards.
7.What is the process for return or replacement of SZMM5Z2V7T1G?
All SZMM5Z2V7T1G units undergo pre-shipment inspection (PSI). If there is an issue with SZMM5Z2V7T1G, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The SZMM5Z2V7T1G part is unused and in its original packaging.
Return procedure for SZMM5Z2V7T1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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